23212454520000 has 560 divisors, whose sum is σ = 78383709059040. Its totient is φ = 6058450944000.

The previous prime is 23212454519999. The next prime is 23212454520019. The reversal of 23212454520000 is 2545421232.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 23212454520000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2753875786 + ... + 2753884214.

It is an arithmetic number, because the mean of its divisors is an integer number (139970909034).

Almost surely, 2^{23212454520000} is an apocalyptic number.

23212454520000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23212454520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39191854529520).

23212454520000 is an abundant number, since it is smaller than the sum of its proper divisors (55171254539040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23212454520000 is an equidigital number, since it uses as much as digits as its factorization.

23212454520000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8950 (or 8925 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 23212454520000 its reverse (2545421232), we get a palindrome (23214999941232).

The spelling of 23212454520000 in words is "twenty-three trillion, two hundred twelve billion, four hundred fifty-four million, five hundred twenty thousand".